Sto Guard Air-Vapor Barrier

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                                                                                                                                                     Sto Guard
       Sto Gold Fill ®                                                            Sto Gold Coat ®
                                                                                                                                                     265 Sto Gold Coat®
Technical Data                                                                                                                                       266 Sto Gold Fill®
                                                                                            TENSILE STRENGTH                STRENGTH
Sto Guard Mesh                                              (ASTM D-5035)                   POST ALKALINE                                            267 Sto Guard Mesh 4.25”
DESCRIPTION                     WIDTH OF ROLL               LENGTH OF ROLL                  WARP WEFT                       SOAK (EIMA 105.01)
                                                                                                                                                     268 Sto Guard Mesh 9.5”
Sto Guard Mesh                  4.25” (11 cm)               150’ (45.7 m)                   150         165                 >120
– 4.25”                                                                                                                                              Division 7
Sto Guard Mesh                  9.5” (24 cm)                150’ (45.7 m)                   150         165                 >120
– 9.5”                                                                                                                                               Sto Gold Fill ® is a ready-mixed, flexible,
                                                                                                                                                     joint compound, air barrier material. It is
                                                                                                                                                     applied to rough openings and sheathing
Sto Gold Fill® & Sto Gold Coat®                                                                                                                      joints in walls.
TEST                                 METHOD                 CRITERIA                                          RESULTS
                                                                                                                                                     Sto Guard Mesh is a glass fiber self-
Aging/Water                          AATCC 127              Resist 21.6 in (55 cm)                            No water penetration before and
Penetration Resistance               (Water Column)         water for 5 hours before                          after aging. No water penetration at   adhesive mesh for use with Sto Gold
                                                            and after aging.                                  332 inches (845 cm) head of water      Fill ®.
                                                                                                              before aging
                                                                                                                                                     Sto Gold Coat ® is a ready-mixed flexible
Structural Loading/                  ASTM E 1233/           No water at exterior plane of sheathing .         No water penetration
Water Penetration                    ASTM E 331             (exterior gypsum, Dens-Glass® Gold,
                                                                                                                                                     coating. It is applied directly to wall
Testing                                                     plywood, OSB) after 10 cycles @ 80%                                                      sheathing and functions as a water-
                                                            design load and 75 minutes water                                                         proofing/air barrier when combined with
                                                            spray at 6.24 psf (299 Pa) pressure                                                      Sto Gold Fill ®.
                                                            differential with water spray rate of
                                                            5 gal/ft2·hr (3.4 L/m2·min)                                                              All three form the Sto Guard ® Assembly,
Cyclic Pressure/Water                ASTM E 283/            No water penetration or evidence of               No water penetration, no               a liquid applied building wrap that offers
Penetration Testing                  ASTM E 331             elevated moisture levels in plywood               elevated moisture levels               a superior water-proofing/air barrier.
                                                            sheathing after 10 cycles of conditioning                                                Sto Guard ® can be used beneath various
                                                            at 299 Pa (6.24 psf) positive and negative                                               claddings including brick, wood, vinyl,
                                                            pressure followed by 75 minutes water
                                                            spray at 6.24 psf (299 Pa) pressure
                                                                                                                                                     or fiber/cement sidings; and as part of
                                                            differential with water spray rate of                                                    Sto EIFS NExT ®; and with a wide variety
                                                            5 gal/ft2·hr (3.4 L/m2·min)                                                              of gypsum, cement or wood based
Water Resistance Testing             ASTM D 2247            Absence of deleterious effects                    No deleterious effects                 sheathing substrates.
                                                            after 14 day exposure                             after 14 day exposure
Resistance to Mold Growth            ASTM D 3273            No mold growth after 28 days                      No mold growth after                   Features & Benefits
                                                                                                              28 day exposure
                                                                                                                                                     Air Barrier
Freeze/Thaw Resistance               ICBO Method            No visible effects (cracking,                     No visible deleterious effects         Reduces risk of condensation caused by air
                                     (AC 24)                checking, delamination,                           at 5x magnification                    leaks through the wall construction;
                                                            erosion) when viewed at 5x                                                               reduces energy costs by reducing
Water Vapor Transmission             ASTM E 96              Measure                                           Sto Gold Fill®: 17.3 perms             heating/cooling loads
                                     Method B                                                                 [994 ng/(Pa·s·m2)]
                                     (Water Method)                                                           Sto Gold Coat®: 5.7 perms              Waterproof coating for sheathing
                                                                                                              [327 ng/(Pa·s·m2)]                     Minimizes risk of water damage to sheath-
Air Leakage:                         ASTM E 283             <0.06 cfm/ft2 @ 1.57 psf                          0.0044 cfm/ft2
                                                                                                                                                     ing and associated repair or replacement
Wall Assembly w/Sto Gold             (SBCCI PST &           (0.00030 m3/s·m2 @ 75 Pa)                         (0.000022 m3/s·m2)                     costsle
Fill® & Sto Gold Coat®               ESI Method)
                                                                                                                                                     Vapor Permeable
Air Leakage:                         ASTM E 283             < 0.003 cfm/ft2) @ 1.57psf                        < 0.0002 cfm/ft2                       Moisture does not get trapped in the wall
Sto Gold Fill®                       (CCMC Technical        (< 0.02 L/s·m2 @ 75 Pa)                           (< 0.0014 L/s·m2)                      cavity
                                     Guide Method)
Air Leakage:                         ASTM E 2178            < 0.003 cfm/ft2) @ 1.57psf                        < 0.0002 cfm/ft2                       Structural
Sto Gold Fill®                       (CCMC Technical        (< 0.02 L/s·m2 @ 75 Pa)                           (< 0.0014 L/s·m2)                      No air leakage or moisture intrusion
                                     Guide Method)                                                                                                   between the sheathing and Sto Guard; rigid
                                                                                                                                                     and stable under air pressure loads; does
Structural Integrity                 ASTM E 330             2 inches (51 mm) water pressure                   No loss of structural integrity
                                                                                                                                                     not tear or blow off the wall with wind
                                                            (positive and negative) for 1 hour
Dry Tensile Strength                 ASTM D 882             20 lbs/in (3503 N/m) minimum                      Sto Gold Fill®:                        Seamless
                                                            before and after aging                            159 pli (27.8 kN/m) before aging       No tears, holes, or mislapped joints that can
                                                                                                              213 pli (37.3 kN/m) after aging        compromise performance in service
Flexibility                          ASTM D 522             No cracking or delamination using                 No cracking or delamination before
                                                            1/8” (3 mm) mandrel at 14º F (-10º C)             and after aging
                                                            before and after aging                                                                   Does not tear or lose its effectiveness with
                                                                                                                                                     exposure to weather during construction or
Tensile Adhesion                     ASTM C 297             >15 psi (103 kPa)                                 Gypsum (ASTM C 79):                    while in service
                                                                                                              >30 psi (206 kPa)
                                                                                                              Gypsum (ASTM C 1177):                  Resists UV Degradation
                                                                                                              > 30 psi (206 kPa)                     Gives peace of mind if construction delays
                                                                                                              Exposure 1 OSB:                        occur
                                                                                                              > 50 psi (344 kPa)
                                                                                                              Exterior Plywood:                      Liquid formulation – Water Based
                                                                                                              > 90 psi (620 kPa)                     Safe non-toxic, VOC Compliant; saves time
Surface Burning                      ASTM E 84              Flame Spread: <25                                 Flame Spread: 5                        and money when installing the product;
                                                            Smoke Developed: <450                             Smoke Developed: 10                    does not require highly skilled labor
                                                                                                              NFPA Class A, UBC Class 1
                                                                                                              building material
Fire Testing                         UBC 26-9               No increase in fire hazard                        Pass
*Dens-Glass Gold is a registered trademark of G-P Gypsum Corp.
**100% failure of substrate
Sto Guard
265 Sto Gold Coat®
266 Sto Gold Fill®
267 Sto Guard Mesh 4.25”
268 Sto Guard Mesh 9.5”
Coverage                                                        Sheathing joints, rough openings, and corners must then        conditions exist for prolonged periods. Cool, damp condi-
Sto Guard Mesh 4.25” (11 cm) x 150 ft2 (45.7 m)                 be covered with Sto Guard Mesh and Sto Gold Fill®.             tions retard drying and may require extended periods of
Sto Guard Mesh 9.5” (24 cm) x 150 ft2 (45.7 m)                  Substrate to receive the second coat of Sto Gold Coat®         protection.
                                                                must be continuous without joints, holes, etc. exceeding
Sto Gold Fill®: One pail will treat approximately                                                                              Do not use on damp surfaces, below grade, or on surfaces
                                                                1/32" (0.8 mm) in size. The second coat of Sto Gold
175-250 linear feet (53-76 m) of sheathing joints and                                                                          subject to water immersion. Do not use over pressure
                                                                Coat® must be applied over the treated surface in a sin-
rough openings. Coverage may vary depending on appli-                                                                          treated or fire retardant treated wood surfaces. Not rec-
                                                                gle, uniform coating to a wet thickness of 10 mils.
cation technique, sheathing type, the size of sheathing                                                                        ommended for spanning sheathing joints or holes in
joints and the number and condition of rough openings.          Installation over Concrete Masonry Wall                        excess of 1/8" (3 mm) wide.
Sto Gold Coat®:                                                                                                                Sto Guard Mesh: High humidity or adverse weather may
                                                                Concrete masonry must be clean, dry and free from
Dens-Glass® Gold: 425-525 ft2 (39-49 m2) per pail                                                                              result in loss of adhesion prior to application of Sto Gold
                                                                damage, frost, and all bond-inhibiting material, including
Exterior Gypsum: 550-650 ft2 (51-60 m2) per pail                                                                               Fill®. Immediately cover with Sto Gold Fil®l to prevent
                                                                dust, dirt, mold, algae and efflorescence. Repair shrinkage
Plywood: 550-650 ft2 (51-60 m2) per pail                                                                                       loss of adhesion. Avoid contact with dirt and debris which
                                                                cracks up to 1/8 inch (3 mm) wide by centering Sto Detail
OSB: (2 coats): 300-400 ft2 (28-37 m2) per pail                                                                                will cling to self-adhesive side of mesh. Not for use on
                                                                Mesh over the crack and embedding in Sto Gold Fill®.
CMU: (2 coats): 250-400 ft2 (23.1-37 m2) per pail                                                                              concrete or masonry surfaces. Use Sto Detail Mesh
                                                                Rake the crack with a sharp tool to remove loose or fri-
Coverages may vary depending on application                     able material, and blow clean with oil free compressed air.    embedded in Sto Gold Fill for these surfaces.
technique and surface conditions.                               Apply Sto Gold Fill® by spray or trowel over the crack.        For complete information refer to Sto Guard Air Barrier
                                                                Depending on the straightness of the crack use 4 inch          and Moisture Control Handbook.
Packaging                                                       (101 mm) or 9 inch (152 mm) wide Sto Detail Mesh to
Sto Gold Fill®: 5 gal. pail (19 L)                              allow approximately 2 inches (51 mm) of mesh on each
Sto Gold Coat®: 5 gal pail (19 L)                               side of the crack. Immediately embed Sto Detail Mesh           Health & Safety
Shelf Life                                                      mesh in the wet material and trowel smooth. For cracks         Health Precautions
12 months, if properly stored and sealed.                       wider than 1/8 inch (3 mm) and up to 1/4 inch (25 mm)          Products are water-based. As with any chemical
                                                                wide use a paintable acrylic latex caulk to fill the crack     construction product, exercise care when handling.
Storage                                                         and tool flush with the surface. For moving cracks, consult
Protect from extreme heat [90º F (32º C)], freezing and         a structural engineer. Do not use Sto Guard materials to       Safety Precautions
direct sunlight.                                                repair moving cracks or cracks wider than 1/8 inch (3          Use adequate ventilation. Safety goggles and
                                                                mm). Do not use Sto Guard Mesh (“self stick”) to repair        protective gloves are recommended. Remove
Surface Preparation                                             cracks in concrete. Protect crack repair materials from rain   contaminated clothing immediately.
Surfaces must be clean, dry, and free of frost, damage and      and freezing until dry.
all bond-inhibiting materials, including dirt, efflorescence,                                                                  First Aid
form oil and other foreign matter. Damaged sheathing            For air and moisture barrier: Fill the masonry wall surface    SKIN CONTACT: Wash thoroughly with soap and water.
must be removed and replaced. Avoid application over            with minimum one coat of Sto BTS Plus, Sto Primer/             EYE CONTACT: Flush immediately with water for
irregular surfaces. Substrate to be coated must be continu-     Adhesive-B, Sto BTS Silo or Sto Leveler, applied by spray      10-15 minutes and contact a physician.
ous without joints, holes, etc. exceeding1/32" (0.8 mm) in      or trowel. Protect from rain and freezing until dry.           RESPIRATORY PROBLEMS: Remove affected person to
size. Sheathing must be properly installed as required by       Additional coats may be necessary depending on the             fresh air immediately and contact a physician.
applicable building codes or sheathing manufacturer.            condition of the CMU surface. Apply Sto Gold Coat® by          HYGIENE: Wash hands immediately after use. Wash cloth-
                                                                spray or roller over the surface to a uniform wet mil thick-   ing before re-use.
Mixing                                                          ness of 8-10 mils in one coat. Use a 1/2 inch (51 mm)
                                                                                                                               Spills: Collect with a suitable absorbent material such as
Mix with a clean, rust-free electric drill and paddle to a      nap roller.
                                                                                                                               cotton rags.
uniform consistency. PRODUCTS MUST NOT BE THINNED               For moisture barrier only: Apply Sto Gold   Coat®   by spray
OR DILUTED.                                                     or roller over the surface, including the dry crack treat-     Disposal: Dispose in accordance with local, state and
                                                                ment, to a uniform wet mil thickness of 8-10 mils. Use a       federal regulations.
Apply only to sound and clean, dry, properly prepared, frost-   3/4 inch (19 mm) nap roller. Apply a second coat of Sto        Warning
free surfaces.                                                  Gold Coat® by spray or roller over the first coat to a uni-    KEEP CONTAINER CLOSED WHEN NOT IN USE. KEEP OUT
                                                                form wet mil thickness of 8-10 mils.                           OF REACH OF CHILDREN. NOT FOR INTERNAL CONSUMP-
Installation over Sheathed Wall Construction: Place
minimum 4 inch (101 mm) wide mesh at sheathing joints           Protect from rain and freezing until dry.                      TION. FOR INDUSTRIAL USE ONLY. Consult the Material
and minimum 9 inch (152 mm) wide mesh at rough open-                                                                           Safety Data Sheet for further health and safety informa-
                                                                Material Storage                                               tion.
ings and inside and outside corners (refer to Sto detail        Keep containers covered to protect from skinning. If skin
20.23a).Immediately apply Sto Gold Fil® by spray or trow-       forms, remove the skinned material from container;             LIMITED WARRANTY
el over the mesh and trowel smooth. Protect from rain           remaining material is unaffected by skinned material.          THIS PRODUCT IS SUBJECT TO A WRITTEN LIMITED WAR-
and freezing until dry. Spot fasteners and surface defects                                                                     RANTY WHICH CAN BE OBTAINED FREE OF CHARGE
with Sto Gold Fill®.                                            Curing and Drying                                              FROM: Sto Corp., 3800 Camp Creek Parkway, Building
                                                                Sto Gold Fill® is dry to touch and can be overcoated with-     1400, Suite 120, Atlanta, GA 30331; Tel: 404-346-3666;
Sto Gold Coat®: Over Exterior Gypsum Sheathing,
                                                                in 4 hours under normal [70º F (21º C), 50% RH] condi-         Fax: 404-346-3119.
Dens-Glass® Gold, Exterior Plywood: Apply Sto Gold
                                                                tions. Sto Gold Coat® is dry to touch and can be over-
Coat to the prepared substrate using spray equipment
                                                                coated within 2-4 hours under normal conditions. Wait 24       Sto Corp.
such as Sto’s M-8 Spray Pump, or Grayco TEX spray equip-
                                                                hours before adhesive attachment of Sto insulation board.      3800 Camp Creek Parkway
ment: GTX 2000 or RTX 1500, or with the appropriate
size nap roller in a single, uniform coating at a wet thick-    Final drying varies depending on temperature/ humidity         Building 1400, Suite 120
ness of 10 mils. Application over G-P Dens-Glass® Gold          and surface conditions. Protect from rain and freezing until   Atlanta, GA 30331
sheathing: use 3/4" (19 mm) nap roller. Application over        completely dry.                                                Tel: 404-346-3666
plywood and exterior gypsum sheathing: use a 1/2" (13                                                                          Toll Free: 1-800-221-2397 100% ACRYLIC
mm) nap roller.                                                 Clean Up                                                       Fax: 404-346-3119           POLYMERS
                                                                Clean tools and equipment with water immediately after
Sto Gold Coat®: Over Oriented Strand Board                      use. Dried material can only be removed mechanically.
(OSB): A two-coat application of Sto Gold Coat® is                                                                             S155-265/266/267/268 09/04 VEN 5609
required over OSB. The first coat is applied over the pre-      Limitations
pared substrate prior to treating sheathing joints, rough       Sto Gold Coat® and Sto Gold Fill®: Apply only when
openings, and corners. Apply Sto Gold Coat® by spray or         the surface and ambient temperatures are above 40° F
roller with a 3/4" (19 mm) nap roller in a single, uniform      (4° C) and below 100º F (38º C) during application and
coating at a wet thickness of 10 mils and allow to dry.         drying period. Not recommended for use when cool, damp

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